product name:
Slag ball content analyzerFirst, the use of slag ball content
in accordance with
GB/T5480.5-2008
Mineral wool and its products test method Standard design of slag ball content, can analyze the slag ball content of glass wool and its products, slag wool, rock wool, its products, aluminum silicate cotton and its products. It has the characteristics of small size, beautiful appearance and practicality, and is an essential instrument in the laboratory.two,
Steps for usage
1,
Preparation sample
press
GB/T5480.5-2004
The selection of the pattern, cut the full thickness of the sample
11g
about. In the case of glass wool and its products, at (
500±20
)
°C
Burning
30min
Above; for silicate cotton and its products, at (
700±20
)
°C
Burning
30min
the above. Remove the binder and weigh it accurately
0.01g
. The number of samples shall be as specified in the product standard, but shall not be less than
3
One.
2,
Press sample
The weighed sample is placed in the corresponding sample cylinder and placed on the press for manual screw press.
3,
Wetting sample
Take out the pressed sample and put it on
250mL
Adding a surfactant solution to the measuring cup
50mL
And stir well to allow the fibers to wet and disperse in solution.
4,
Separation test
Move all of the sample into the separation barrel.
Turn on the water switch to make the flow rate of the rotameter
60mL/min
This flow is maintained until the fibers are dispersed and suspended in the water.
Increase water flow to (
120-180
)
mL/min
, continue to separate
10min
about.
After the water in the separation cylinder is clarified, the slag discharge valve at the lower end of the separation cylinder is opened, and the slag ball is completely discharged into the standard sieve whose side length is not longer than the side length of the sieve hole specified by the product standard by means of the water flow.
Check if the fibers in the fiber collector contain slag balls. If there are slag balls, they should be placed in the separator for separation.
5,
dry
Put the sieve containing the slag ball into the electric drying oven, at
105-110
)
°C
Dry at least at temperature
20min
.
6,
Screening
Move the dried slag ball into the standard sieve of the sieve specified in the product standard, and add
3
Only the diameter is (
20±1
)
Mm
Ceramic ball, after being covered, start the sieve screening machine
15min
.
7,
Weighing
The sieved slag balls are weighed on a balance and the readings are accurate.
0.01g
.
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